Hi Robert, You mean if I want to be able to use a don't care key for example for any of my arrays, I should insert a fixed constant element in all of them ?
-- afshin On Fri, Jul 2, 2010 at 1:19 AM, Robert Newson <[email protected]>wrote: > Afshin, > > Unfortunately, none of your four assumptions are correct. > > CouchDB supports key and key range lookup only, there is no syntax for > "match all arrays" or "match all objects". > > What you have probably seen is this trick; > > ?startkey=["foo"]&endkey=["foo",{}] > > which, in most circumstances, selects all array keys where the first > item is a string of "foo". This works because shorter arrays sort > before longer arrays and {} (empty object) sorts later than any > possible string. > > As Zachary pointed out above, the view collation is described at > http://wiki.apache.org/couchdb/View_collation. > > B. > > On Thu, Jul 1, 2010 at 9:30 PM, Zachary Zolton <[email protected]> > wrote: > > Afshin, > > > > Well, if you want to just get a certain "slice" of a view's key space, > > you'll want to use both the startkey and endkey parameters. > > > > For instance, if you just want all the view rows where the key > > contains an array, try this: > > > > startkey=[]&endkey={} > > > > Any array value (e.g. ["foo"] or ["foo","bar"]) will collate at or > > after the empty array (i.e. []), and since in this example you don't > > want any object keys coming through we stop at the empty object (i.e. > > {}). > > > > Is this any clearer? > > > > -Zach > > > > On Thu, Jul 1, 2010 at 3:04 PM, afshin afzali <[email protected]> > wrote: > >> Thank you, I've saw this page already. My question is based on that > page. > >> Are you confirm my assumtions ? > >> > >> > >> > >> > >> On Fri, Jul 2, 2010 at 12:26 AM, Zachary Zolton < > [email protected]>wrote: > >> > >>> Here's the overall ordering of collation: > >>> http://wiki.apache.org/couchdb/View_collation#Collation_Specification > >>> > >>> On Thu, Jul 1, 2010 at 2:31 PM, afshin afzali <[email protected]> > >>> wrote: > >>> > Hi Guys, > >>> > > >>> > These are some simple assumptions which I would be confirmed when > using > >>> in > >>> > startkey param: > >>> > > >>> > 1) {} matches all object keys ( including {} ) > >>> > 2) [] matches all array keys (including [] ) > >>> > 3) "" (null string) matches all string keys (including "") > >>> > 4) {} at the end of complex key matches all of remained ones > >>> > > >>> > BEST > >>> > -- afshin > >>> > > >>> > >> > > >
